@prefix dcterms: <http://purl.org/dc/terms/>.
@prefix foaf: <http://xmlns.com/foaf/0.1/>.
@prefix wdrs: <http://www.w3.org/2007/05/powder-s#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
@prefix gr: <http://purl.org/goodrelations/v1#>.
@prefix xml: <http://www.w3.org/XML/1998/namespace>.
@prefix vcard: <http://www.w3.org/2006/vcard/ns#>.
@prefix dc: <http://purl.org/dc/elements/1.1/>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix pto: <http://www.productontology.org/id/>.
@prefix schema: <http://schema.org/>.


# OWL DL work-arounds (instead of imports)
dc:contributor a owl:AnnotationProperty.
dc:creator a owl:AnnotationProperty.
dc:rights a owl:AnnotationProperty.
dc:subject a owl:AnnotationProperty.
dc:title a owl:AnnotationProperty.
dcterms:license a owl:AnnotationProperty.
wdrs:describedby a owl:AnnotationProperty.
foaf:Document a owl:Class.
foaf:homepage a owl:AnnotationProperty.
foaf:page a owl:AnnotationProperty.
foaf:primaryTopic a owl:AnnotationProperty.
schema:Product a owl:Class.


#OWL 1 DL compatibility of the OWL2 deprecated property
owl:deprecated a owl:AnnotationProperty.

<http://www.productontology.org/#> 	a owl:Ontology;
	dc:title "PTO: The Product Types Ontology for Semantic Web-based E-Commerce"@en;
	rdfs:comment """The Product Types Ontology: Good identifiers for product types based on Wikipedia

This service provides GoodRelations-compatible class definitions for any type of product or service that has an entry in the English Wikipedia.

Vocabulary:    http://www.productontology.org/#
Namespace:     http://www.productontology.org/

The Product Types Ontology is designed to be used in combination with GoodRelations, a standard vocabulary for the commercial aspects of offers.

See http://purl.org/goodrelations/ for more information."""@en;
	rdfs:label "The Product Types Ontology for Semantic Web-based E-Commerce"@en;
	dc:contributor "The class abstracts and translations of labels are taken from Wikipedia, the free encyclopedia."@en;
	dc:creator "Martin Hepp"@en;
	dc:rights "The class definition texts are taken from Wikipedia, the free encyclopedia under a Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license, see http://creativecommons.org/licenses/by-sa/3.0/. Accordingly, all ontology class definitions provided in here are available under the very same license."@en;
	dc:subject "E-Commerce, E-Business, GoodRelations, Ontology, Wikipedia, DBPedia"@en;
	dcterms:license <http://creativecommons.org/licenses/by-sa/3.0/>;
	rdfs:seeAlso <http://purl.org/goodrelations/v1>;
	owl:imports <http://purl.org/goodrelations/v1>;
	owl:versionInfo "2026-04-09T09:49:13.280852".

<http://www.productontology.org/> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/#>.

<http://www.productontology.org/doc/Wheel.rdf> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Wheel>.
<http://www.productontology.org/doc/Wheel.ttl> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Wheel>.
<http://www.productontology.org/doc/Wheel> a foaf:Document;
	foaf:primaryTopic <http://www.productontology.org/id/Wheel>.
	
<http://www.productontology.org/id/Wheel> a owl:Class;
	rdfs:subClassOf gr:ProductOrService, schema:Product;
	rdfs:label "Wheel"@en;
	rdfs:comment """A wheel is a rotating component (typically circular in shape) intended to turn on an axle bearing. The wheel is one of the key components of the wheel and axle, which is one of the six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily, facilitating transportation, supporting loads, and performing work in machines. Wheels are also used for other purposes, such as a ship&#39;s wheel, steering wheel, potter&#39;s wheel, and flywheel.
Common examples can be found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of axles. For a wheel to rotate, a moment must be applied to the wheel about its axis, either by gravity or by the application of another external force or torque. 

(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Wheel)"""@en;
	rdfs:isDefinedBy <http://www.productontology.org/#>;
	rdfs:label "Агьежь"@ab; 
	rdfs:label "Wiel"@af; 
	rdfs:label "Rueda"@an; 
	rdfs:label "चक्र"@anp; 
	rdfs:label "عجلة"@ar; 
	rdfs:label "চকা"@as; 
	rdfs:label "Rueda"@ast; 
	rdfs:label "Təkər"@az; 
	rdfs:label "تکر"@azb; 
	rdfs:label "Rad"@gsw; 

	rdfs:seeAlso <http://www.productontology.org/>,
		<http://dbpedia.org/resource/Wheel>,
		<http://www.productontology.org/doc/Wheel>;

	wdrs:describedby <http://www.productontology.org/doc/Wheel.rdf>, <http://www.productontology.org/doc/Wheel.ttl>;
	foaf:homepage <http://www.productontology.org/doc/Wheel.html>;
	foaf:page <http://en.wikipedia.org/wiki/Wheel>.